Mechanical movement for type-writing machines



(No Model.) 7

J. B. LYPORD. I MEGHANIGAL MOVEMENT FOR TYPE WRITING MACHINES.

No. 565,009. S Patented Aug. 4, 1896.

WITNESSES: INVENTOR ATTOREY m: uonms warns on. PNOTO-UYNO. WAsHsNcTuN.p.41

UNITED STATES PATENT OFFICE.

JAY B. LYFORD, OF BRIDGEPORT, CONNECTICUT.

MECHANICAL MOVEMENT FOR TYPE-WRlTlNG MACHINES.

SPECIFICATION forming part of Letters Patent No. 565,009, dated August4, 1896.

Application filer] August 29, 1895. Serial No. 560,920. (No model.)

To all whom, it may concern.-

Be it known that I, JAY B. Lvronn, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements inMechanical Movements; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to certain new and useful improvements inmechanical movements such as are especially adapted for use in effectingthe proper movements to type-bars for type-writing machines, and has forits obj ect to insure a rapid, positive, and easy movement, while at thesame time the construction of my invention is exceedingly simple,

In the accompanying drawings, which form a part of this application,Figures 1 and 2 are side elevations, respectively showing the positionof the several parts of my improvement when in their normal andeffective positions.

Similar numbers of reference denote like parts in both figures of thedrawings.

It is not deemed necessary to show my improvement in connection with anymachine, and I have therefore merely illustrated such parts of anordinary type-writing machine with which my invention may be especiallyidentified.

1 is a base; 2, an upright projecting therefrom; 3, an inking-pad,supported in any ordinary manner, and in the present instance securedupon the face of a vertical standard 4, rising from the bed, and 5represents an ordinary platen of a type-writing machine, which is hereinshown in dotted lines.

6 is a small rod, and 7 is ahead to which the upper extremity of saidrod is pivoted.

8 is a rod whose upper extremity is pivoted to the head 7 at a pointeccentric to the point where the upper end of the rod 6 is pivoted, thelower extremity of this rod 8 being provided with a laterally-extendingeye 9, which surrounds the rod 6 loosely, so as to permit of the freemovement of said eye along such rod.

The movement oif'the rod 8 in the direction of its length or insubstantial parallelism with the rod 6 will cause the head 7 to be swungupon its pivotal connection with the upper end of the rod 6, and as itis desirable to limit this swinging movement of the head, so that thelatter may always be broughtto the same position, such as is shown atFig. 2, I have provided a stop-shoulder 10 on the rod 6, against whichshoulder the eye 9 will strike, so as to limit the throw of the rod 8.Of course in some instances the position of this stop-shoulder would bechanged, or perhaps said shoulder would be omitted altogether, sincethis depends entirely upon the position assumed by the head when itperforms its function.

11 is a lever, which is pivoted at any suit able point between itsextremities to the upright 2, the outer extremity of this lever be ingprovided, in the present instance, with the usual finger-disk 12, commonin type-writing machines, while the inner extremity of said lever ispivoted to the lower end of the rod 8 at or about the point where theeye portion 9 joins said rod.

13 is a spring the extremities of which are connected, respectively,with the base 1 and with said lever 11, the function of which spring isto return said lever to its normal position, such as is shown at Fig. 1.

hen the outer end of the lever is depressed, the rod 6 will thereby beswung upward, carrying with it the head 7, while at the same time therod 8 will be elevated in the direction of its length, (the eye 9readily sliding along the rod 6 to permit of such elevation,) and asthis rod is elevated the head 7 will thereby be swung around to theposition necessary for the performance of its function, as is fullyshown at Fig. 2.

Of course it will be readily understood that the manner in which therods 6 8 are pivoted to the head 7 depends entirely upon the positionwhich said head must assume in performing its function, and I thereforedo not wish to be limited to the precise details of construction shown,the gist of my invention in this respect resting in the broad idea ofpivoting the head to one of the rods so that said head will be carriedthereby and in so connecting the other rod with this head that it vwillact as a lever to swing the head around the first mentioned pivot.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the base, the rod 6 pivoted at its lower extremityto said base the head 7 pivoted to the upper extremity of said rod, therod 8 having its upper end pivoted to said head at a point eccentric tothe first-mentioned pivotal point and provided at its lower extremitywith an eye which loosely embraces the rod 6, the lever 11 pivotallysupported upon said base and having its inner extremity pivoted to thelower end of said rod 8, and the spring having its extremities connectedrespectively With said base and lever, substantially as set forth.

2. The combination of the base having proj ecting upwardly therefrom theupright 2, the rod 6 pivoted at its lower end to said base and providedwith a stop-shoulder 10, the

20 head 7 pivoted to the upper end of said rod,

the rod 8 having its upper extremity pivoted to said head at a pointeccentric to the firstmentioned pivotal point of said head and providedwith an eye at its lower extremity which extends laterally and looselyembraces the rod 6 at a point below said shoulder 10. the lever 11pivotally connected to said upright 2 and having its inner extremitypivoted to the lower end of said rod 8, and the coilspring 13 having itsextremities respectively secured to said base and lever whereby thenormal position of the latter is maintained. substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

' JAY B. LYFORD.

Vitnesses F. W. SMITH, Jr., M. T. LONGDEN.

